Beer-filter.



Patented Dec. Il, |9001, G. K UCHMANN.'

BEER FILTER.

{Application filed June 13, 1900.;

2 Sheets-Sheet 4l.

(No Model.)

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No. 663,765. Patented D66. n, |600;I G. KUCHMANN.

BEER FILTER IAxrv'cnh'cmicxn filed June 13, 1900.;

2 Sheets-Sheet 2.

(No. Model.)

lINiTnD STATES arisNr Unsinn.

eEoRenKoHMANN, oF WILKns-BARR, PENNSYLVANIA.

BEER-FILTER SPECIFICATION forming part of Letters Patent No. 663,765,dated December 11, 1900.

Application led June 13,1900.

To @ZZ whom, t may concern:

Be it known that I, GEORGE KCHMANN, a citizen of the United States,residing at W'ilkes-Barr, in the county of Luzerne and State ofPennsylvania, have invented certain new and useful Improvements inFilters, of which the following is a specification.

My invention relates to a new form of apparatus for filtering liquors orother liquids; and it consists in the construction and arrangementhereinafter described.

In the accompanying drawings,which illustrate the invention, Figure l isa vertical section through the center of the filter. Fig. 2 is a sectionon the line 2 2 of Fig. 1. Fig. 3 is a detail isometric view showi ngthe arrangement of the filtering-pans. Fig. 4 is a section through theoutlet apparatus. Fig. 5 is a top plan view of the filter, partly brokenaway; and wFig. 6 is a view showing the means for securing the oppositesides of the filterpans together.

Referring to the drawings, 1 indicates a flat rectangular box or casinghaving a removable top 2, which is normally secured in place by means ofa series of clamping-bars 3, which extend across it. These bars areformed with openings in their ends adapted to fit over theupwardly-projecting ends of a corresponding series of bands 4, whichextend around the sides and bottom of the casing, and said bars areforced downward by means of wing-nuts 5, as shown, to make the top iittightly. The casing may be made of wood or other suitable material,lined with block tin or copper. Within the interior of the casing, oneach side of the center, are vertically arranged a pair of parallellter-boxes 6 and 7, said boxes extending from end to end of the casingand being held in position by stops 8, 9, and 10, arranged upon thebottom of the casing,stops 8n and 9i upon the ends, and stops 12 and 13upon a removable block-tin cover-plate 14, which is normally pressedagainst the tops of the filter-boxes by springs 15. Each iilterboxconsists of two flat block-tin plates 16 and 17, having perforations ofsuitable size, the edges 18 and 19, respectively, of said plates beingturned at the right angle and arranged to telescope with each other. Theinner plates 17 are also covered by a copper screen 35 of Serial No.20,181. (No model.)

2O are secured to the plates and project inwardly in order to hold thematerial in position and prevent its sagging and falling to the bottom.part of the sediment from the liquid. The inner casings 6 are narrowerand are filled with a liner and more compact material for the purpose ofremoving the sediment which remains after the passage of the liquidthrough the outer boxes. The opposite sides of each filter-box are heldtogether by means of bolts 21, arranged in the corners of the boxes, anda central bolt 22 Instead of'providing nuts on these bolts I provide arod or lever 23 for each bolt-,having a threaded opening which fits overthe bolt and by means of which the opposite sides of the filter-boxesmay be drawn toward each other. (See Fig. 6.) These rods or wrenches areprovided for convenience in taking the filter-boxes apart for thepurpose of cleaning or relling. For this purpose the cover and top platemay be removed and any one of the iilter-boxes may be taken outseparately, and when laid upon its side the plates may be taken apart bv unscrewing the levers 23 from the bolts.

In order to preserve tight joints between the filter-boxes and thestops, rubber packings 24E are inserted around the edges of the boxes,between the stops, as shown. At the opposite ends of the filter-casing,between the inner boxes 6, I provide aseries of wedges 25, 26, and 27for the purpose of forcing the ends of the inner boxes against thestops, thereby making tight joints. By forcing the central wedge-piecedownward it will be obvious that the other wedge-pieces will be forcedoutward, compressing the ends of the filter-boxes.

In operation the beer or other liquor enters through an inlet-opening 28in the top of the filter, Hows over the opposite edges of the removablecover 14, and thence downward along lthe sides of the outerfilter-boxes, from whence it passes through the filter-boxes to theclarified-liquid spaces 28. From this space the liquid flows upward andoutward These boxes remove thegreater IOO through an outlet-pipe 29,which has a vertically-adjustable section 30, registering with anopening 31 in the top of the removable cover-plate let. Whenever liquidis admitted through the inlet-pipe, the air within the filter mustescape before the clarified liquid can pass out, and if no means wereprovided for permitting this air to escape rapidly it would first passthrough the filtering material and in that way retard the operation ofthe filter. I therefore arrange to lift the section off of the coverlliin starting thefilter. The liquid then being permitted to pass intothe .filter will fill the casing and the air will pass out through theoutlet-pipe. As soon as the casing is filled and the liquid commences topass through the outletpipe the section 30 is screwed down tight upon asuitable valveface surrounding` the opening in the cover 14, therebycausing the liquid to pass through the filter-boxes and preventinganything but the clarified liquid from the central space from enteringsaid pipe.

`In Fig. 1 the section 30 is screwed down upon the cover, while in Fig.4 this section is raised. The pipe-section may be raised and lowered invarious ways. As shown, said section is operated by means of a handwheel37, the hub 32 of which is secured by means of a key 34 to a sleeve 35,which is fitted within a fixed collar 39. The interior of this sleeve isscrew-threaded and engages corresponding screw-threads upon the section30, so that as the sleeve is rotated by means of the hand-wheel thepipe-section will be raised or lowered. A stuffing-box 38 is secured tothe top of the sleeve and fits around the pipe-section.

A drainage-pipe 36 is fitted into the bottom of the central space forthe purpose of drawing off the liquid from said space, together with anysediment which may accumulate therein, when desired. p

Having described my invention, what I claim, and desire to secure byLetters Patent of the United States, is

1. A filter comprising a casing, filter-boxes disposed on opposite sidesof said casing, leaving a central space, said boxes fitting liquidtightagainst the casing along their ends and lower edges and being separatedfrom the side Walls of the casing to provide passage-ways for theinflowing liquid1 a cover-plate fitting liquid-tight against the upperedges of said filter-boxes, an outlet-opening in said coverplatecommunicating with the central space, and an outlet pipe registeringwith said opening, said casing having an opening for the admission ofthe liquid, substantially as described.

2. A filter comprising a casing, filter-boxes disposed on opposite sidesof said casing, leaving a central space, said boxes fitting liquidtightagainst the casing along their ends and lower edges and being separatedfrom the side walls of the casing to provide passage-ways for theinfiowing liquid, a' cover-plate fitting liquid-.tight against the upperedges of said filter-boxes and having an outlet-opening communicatingwith the central space, an outlet-pipe having a section adjustabletoward and from said opening, said casing also having an opening for theadmission of the liquid, substantially as described.

3. A filter comprising a casing, filter-boxes disposed on opposite sidesof said casing,1eaving a central space, said boxes fitting liquidtightagainst the casing along their ends and lower edges and being separatedfrom the side walls of the casing to provide passage-ways for theinflowing liquid, a cover-plate fitting liquid-tight against the upperedges of said filter-boxes, and having an outlet-opening communicatingwith the central space, an outlet-pipe having a section adjustabletoward and from said opening, said casing having an inlet-opening abovethe cover-plate.

4L. A filter comprising a casing, filter-boxes within said casing anddisposed on opposite sides thereof, leaving a central space, stopsarranged around the ends and lower edges of said boxes, wedges at theopposite ends of said casing within the central space, said wedges beingarranged to force the filterboxes against the stops, a springpressedAcover-plate having stops fitting over the upper edges of the boxes, anoutlet-opening in said cover-plate communicating with the central space,and an outlet-pipe registering with said opening, said casing alsohaving an opening for the admission of the liquid, substantially asdescribed.

5. A filter comprising a casing, a pair of filterboxes arranged withinthe casing on each side thereof, said filter-boxes being separated fromthe side walls of the casing to provide a passage-way for the inflowingliquid, stops arranged along the ends and lower edges of said boxes,wedges arranged at the opposite ends of the casing within the centralspace and adapted to force the inner boxes against the stops, aspring-pressed cover-plate having stops fitting over the upper edges ofsaid boxes, said cover-plate having an opening communicating with thecentral space, and an outlet-pipe having a section adjustable toward andfrom the opening, said casing having an opening for the admission of theliquid, substantially as described.

6. A filter-box comprising two fiat perforated plates having overturnededges fitting telescopically together, and a series of bolts passingthrough said plates.

7. A filter-box comprising two fiat perforated plates having overturnededges' fitting telescopically together, pins secured to said plates andprojecting into the interior of the box to support the filteringmaterial, and a series of bolts passing through said plates and securingthem together.

IIO

In testimony whereof I affix my signaturein presence of two Witnesses.

GEORGE KCHMANN.

Witnesses: a

WM. F. GABRIEL,

said bolts. l W. L. RAEDER.

